Rhed Kennel uses tenant-days as its measure of activity; an animal housed in the kennel for one day is counted as one tenant-day. During December, the kennel budgeted for 4,500 tenant-days, but its actual level of activity was 4,450 tenant-days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for December: Data used in budgeting: Actual results for December: The activity variance for administrative expenses in December would be closest to: Multiple Choice $1,200 $30F $1,200F $30U